CN220278934U

CN220278934U - Flexible clamping mechanism

Info

Publication number: CN220278934U
Application number: CN202321500590.5U
Authority: CN
Inventors: 陆新荣; 刘贵荣; 孙太喜
Original assignee: Guangdong Beishi Dake Technology Co ltd
Current assignee: Guangdong Beishi Dake Technology Co ltd
Priority date: 2023-06-13
Filing date: 2023-06-13
Publication date: 2024-01-02
Anticipated expiration: 2033-06-13

Abstract

The utility model discloses a flexible clamping mechanism, which belongs to the technical field of lathe clamps and comprises a fixing frame and a clamp assembly; the clamp assembly comprises a movable seat, and the movable seat is provided with a pair of symmetrical sliding connection on the fixed frame; one end of the movable seat is fixedly connected with a connecting seat, and the connecting seat is connected with a clamping plate assembly; the clamping plate assembly comprises a fixed clamping plate and a movable clamping plate, and the movable clamping plate can move up and down along the connecting seat; the fixing frame is fixedly connected with a fixing plate, and the fixing plate is rotationally connected with a rotating shaft; one end of the rotating shaft is fixedly connected with a rotating plate, and the other end of the rotating shaft is fixedly connected with a stressed cam rod connected with the power mechanism; a pair of kidney-shaped holes are symmetrically arranged on the rotating plate, and a sliding shaft which is in sliding fit with the kidney-shaped holes is fixedly connected to the movable seat; according to the clamping device, the clamping position of the workpiece can be adjusted by arranging the fixed clamping plate and the movable clamping plate on the clamping plate assembly, so that a better clamping effect is achieved.

Description

Flexible clamping mechanism

Technical Field

The utility model relates to the technical field of lathe clamps, in particular to a flexible clamping mechanism.

Background

Machine tool pliers are devices on a machine tool that are used to clamp a workpiece (and guide a tool). The function of this is to position the workpiece so that it obtains the correct position relative to the machine and tool and to clamp it reliably. According to the different clamping power sources adopted by the clamp, the clamping power sources can be divided into: manual clamps, pneumatic clamps, hydraulic clamps, gas-liquid clamps, electric clamps, magnetic clamps, vacuum clamps, etc. When the fixture is used for clamping workpieces, the position accuracy of the workpieces relative to the cutter and the machine tool is ensured by the fixture, and the workpiece clamping fixture is not influenced by the technical level of workers, so that the machining accuracy of a batch of workpieces tends to be consistent. The clamp is used for clamping the workpiece conveniently and rapidly, the workpiece does not need to be marked and aligned, and auxiliary working hours can be obviously reduced.

In the existing lathe clamp, the clamping and fixing of a workpiece are realized mainly in a quick clamping mode, a special supporting surface and an installation clamp are machined and manufactured at each clamping point during clamping, the clamping and fixing of the workpiece are realized through the mutual approaching of two pairs of clamps, but the surface of a tubular or rod-shaped workpiece is smooth, the workpiece is clamped only through the two clamps, the contact area of the clamps and the workpiece is small, and the clamping positions are positioned on the same horizontal plane, so that the clamping effect is general.

Disclosure of Invention

Aiming at the technical defects, the utility model aims to provide a flexible clamping mechanism, which can adjust the clamping position of a workpiece by arranging a fixed clamping plate and a movable clamping plate on a clamping plate assembly and solve the problem of poor clamping and fixing effects of the existing clamp.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a flexible clamping mechanism, which comprises a fixing frame and a clamp assembly; the clamp assembly comprises a movable seat, and the movable seat is provided with a pair of symmetrical sliding connection on the fixed frame; one end of the movable seat is fixedly connected with a connecting seat, and the connecting seat is connected with a clamping plate assembly; the clamping plate assembly comprises a fixed clamping plate and a movable clamping plate, and the movable clamping plate can move up and down along the connecting seat; a fixed plate is fixedly connected to the fixed frame, and a rotating shaft is rotatably connected to the fixed plate; one end of the rotating shaft is fixedly connected with a rotating plate, and the other end of the rotating shaft is fixedly connected with a stressed cam rod connected with the power mechanism; the rotating plate is symmetrically provided with a pair of kidney-shaped holes, a sliding shaft which is in sliding fit with the kidney-shaped holes is fixedly connected to the movable seat, and the rotating plate rotates to drive the two movable seats to move in different directions respectively.

As a preferable technical scheme of the utility model, the two movable seats are of mutually matched L-shaped structures, and a tension spring is fixedly connected between the movable seat and the fixed frame.

As a preferable technical scheme of the utility model, one end of the rotating shaft, which is connected with the rotating plate, is fixedly connected with a limiting block.

As a preferable technical scheme of the utility model, the two movable seats are fixedly connected with the guide slide bars, the movable seats are provided with the first guide slide holes in sliding fit with the guide slide bars, and the fixing frame is provided with the second guide slide holes in sliding fit with the guide slide bars.

As a preferable technical scheme of the utility model, the fixed clamping plate and the movable clamping plate have the same structure, connecting blocks are arranged on the fixed clamping plate and the movable clamping plate, and clamping grooves are arranged on the fixed clamping plate and the movable clamping plate.

As a preferable technical scheme of the utility model, the connecting seat is provided with a first mounting groove which is connected with the fixed clamping plate in a matching way, and the connecting seat is provided with a second mounting groove which is connected with the movable clamping plate in a matching way and is in a strip shape.

As a preferable technical scheme of the utility model, the connecting block is provided with a connecting hole, the first mounting groove is provided with a first mounting hole which is matched and connected with the connecting hole, the second mounting groove is provided with a second mounting hole which is matched and connected with the connecting hole, and the second mounting hole is in a strip shape.

The utility model has the beneficial effects that:

the clamping mechanism can be used for loading and unloading clamping of rod materials for machine tool machining and the like, achieves the aim of automatic machining, clamps by adopting a spring lever principle, has no stress damage to products, has simple structure, and can adjust the clamping position by adjusting the position of the movable clamping plate, thereby achieving better clamping effect.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a flexible clamping mechanism according to the present utility model;

FIG. 2 is a schematic view of the structure of the clamp assembly of the present utility model;

FIG. 3 is another angular schematic view of FIG. 2;

FIG. 4 is a schematic view of a movable base according to the present utility model;

FIG. 5 is a schematic view of a connecting base according to the present utility model;

fig. 6 is a schematic structural view of the fixing splint of the present utility model.

Reference numerals illustrate: 1. a fixing frame; 2. a movable seat; 201. a first guide slide hole; 3. a connecting seat; 301. a first mounting groove; 302. a second mounting groove; 303. a first mounting hole; 304. a second mounting hole; 4. a cleat assembly; 401. a fixed clamping plate; 4011. a connecting block; 4012. a clamping groove; 4013. a connection hole; 402. a movable clamping plate; 5. a rotating shaft; 6. a force-bearing cam lever; 7. a guide slide bar; 8. a rotating plate; 801. the method comprises the steps of carrying out a first treatment on the surface of the 9. A slide shaft; 10. a limiting block; 11. a tension spring; 12. a fixing plate; 13. and the second guide sliding hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples:

as shown in fig. 1-6, the present embodiment is a flexible clamping mechanism, which comprises a fixing frame 1 and a clamp assembly; the fixing frame 1 is of a U-shaped structure, the clamp assembly is installed in the fixing frame 1 and comprises a movable seat 2, and the movable seat 2 is provided with a pair of symmetrical sliding connection on the fixing frame 1; the two movable seats 2 are of mutually matched L-shaped structures, a tension spring 11 is fixedly connected between the movable seat 2 and the fixed frame 1, rod bodies fixedly connected with the tension spring 11 are arranged on the movable seat 2 and the fixed frame 1, when the movable seat 2 moves to two sides, the tension spring 11 stretches, one end of the movable seat 2 is fixedly connected with a connecting seat 3 through a bolt, and the connecting seat 3 is connected with a clamping plate assembly 4; the clamping plate assembly 4 comprises a fixed clamping plate 401 and a movable clamping plate 402, the positions of the fixed clamping plate 401 are fixed, the positions of the movable clamping plate 402 on the connecting seat 3 can be adjusted to clamp and fix different positions of a workpiece, and the clamping plate assembly 4 has better clamping and fixing effects on the workpiece by adjusting the distance between the movable clamping plate 402 and the fixed clamping plate 401, and the fixed clamping plate 401 and the movable clamping plate 402 are arranged on one connecting seat 3 in the embodiment; the other connecting seat 3 is only provided with a fixed clamping plate 401, and the workpiece can be clamped at three positions through the three clamping plates to achieve better clamping effect; a fixed plate 12 is fixedly connected above the fixed frame 1 through bolts, a rotating shaft 5 is rotatably connected on the fixed plate 12, and the rotating shaft 5 penetrates through the movable seat 2; one end of the rotating shaft 5 is fixedly connected with a rotating plate 8, one end of the rotating shaft 5 connected with the rotating plate 8 is connected with a limiting block 10 in a threaded manner, so that the rotating plate 8 is stably connected to the rotating shaft 5, a pair of kidney-shaped holes 801 are symmetrically formed in the rotating plate 8, sliding shafts 9 which are in sliding fit with the kidney-shaped holes 801 are fixedly connected to the movable seats 2, and the rotating plate 8 rotates to drive the two movable seats 2 to move in different directions respectively; the other end of the rotating shaft 5 is fixedly connected with a stressed cam rod 6 connected with a power mechanism; the power mechanism can adopt an air cylinder, the power mechanism drives the stressed cam rod 6 to rotate, so as to drive the rotating shaft 5 to rotate, the rotating shaft 5 drives the rotating plate 8 to rotate, the sliding shaft 9 slides in the kidney-shaped hole 801, the two movable seats 2 are driven to move in different directions, and the clamping plate assembly 4 is driven to clamp and fix a workpiece; and by arranging the tension spring 11, stress damage to the product is avoided.

As shown in fig. 4-6, the two movable seats 2 are fixedly connected with a guide slide bar 7, the movable seats 2 are provided with a first guide slide hole 201, the first guide slide hole 201 is in sliding fit with the guide slide bar 7 on the other movable seat 2, and the fixed frame 1 is provided with a second guide slide hole 13 in sliding fit with the guide slide bar 7; the fixed splint 401 and the movable splint 402 of this embodiment are the same in structure, all be equipped with connecting block 4011 on fixed splint 401 and the movable splint 402, and all be equipped with the clamp groove 4012 on fixed splint 401 and the movable splint 402, clamp groove 4012 is the V shape, be equipped with on the connecting seat 3 with the first mounting groove 301 of fixed splint 401 cooperation connection, be equipped with on the connecting seat 3 with the second mounting groove 302 of movable splint 402 cooperation connection's strip shape, be equipped with connecting hole 4013 on the connecting block 4011, connecting hole 4013 can be established to the screw hole, be equipped with on the first mounting groove 301 with connecting hole 4013 cooperation connection's first mounting hole 303, first mounting hole 303 passes through bolt and connecting hole 4013 fixed connection, be equipped with on the second mounting groove 302 with connecting hole 4013 cooperation connection's second mounting hole 304, second mounting hole 304 is rectangular shape, the position of movable splint 402 can be along the second mounting hole 304 is adjusted from top to bottom, press from both sides tightly fixed to work piece different positions, improve the clamping fixation effect to the work piece.

When the clamping device is used, the external power mechanism drives the stressed cam rod 6 to rotate, the stressed cam rod 6 rotates to drive the rotating shaft 5 to rotate, the rotating shaft 5 drives the rotating plate 8 to rotate, the sliding shaft 9 slides in the kidney-shaped hole 801, the two movable seats 2 are driven to be close to each other, and the clamping plate assembly 4 is driven to clamp and fix a workpiece; and the position of the movable clamp plate 402 on the clamp plate assembly 4 is adjustable to adjust the clamping position of the workpiece.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A flexible clamping mechanism, which is characterized by comprising a fixing frame (1) and a clamp assembly;

the clamp assembly comprises a movable seat (2), and the movable seat (2) is provided with a pair of symmetrical sliding connection on the fixed frame (1); one end of the movable seat (2) is fixedly connected with a connecting seat (3), and the connecting seat (3) is connected with a clamping plate assembly (4); the clamping plate assembly (4) comprises a fixed clamping plate (401) and a movable clamping plate (402), and the movable clamping plate (402) can move up and down along the connecting seat (3);

a fixed plate (12) is fixedly connected to the fixed frame (1), and a rotating shaft (5) is rotatably connected to the fixed plate (12); one end of the rotating shaft (5) is fixedly connected with a rotating plate (8), and the other end of the rotating shaft (5) is fixedly connected with a stress cam rod (6) connected with a power mechanism;

the rotating plate (8) is symmetrically provided with a pair of kidney-shaped holes (801), a sliding shaft (9) which is in sliding fit with the kidney-shaped holes (801) is fixedly connected to the movable base (2), and the rotating plate (8) rotates to drive the two movable bases (2) to move in different directions respectively.

2. A flexible clamping mechanism according to claim 1, wherein the two movable bases (2) are in an L-shaped structure which is anastomotic with each other, and a tension spring (11) is fixedly connected between the movable base (2) and the fixed frame (1).

3. A flexible clamping mechanism according to claim 1 or 2, characterized in that a stop block (10) is fixedly connected to the end of the rotating shaft (5) connected to the rotating plate (8).

4. A flexible clamping mechanism according to claim 3, wherein the two moving bases (2) are fixedly connected with guide sliding rods (7), the moving bases (2) are provided with first guide sliding holes (201) which are in sliding fit with the guide sliding rods (7), and the fixing frame (1) is provided with second guide sliding holes (13) which are in sliding fit with the guide sliding rods (7).

5. A flexible clamping mechanism according to claim 1 or 4, wherein the fixed clamping plate (401) has the same structure as the movable clamping plate (402), connection blocks (4011) are arranged on the fixed clamping plate (401) and the movable clamping plate (402), and clamping grooves (4012) are arranged on the fixed clamping plate (401) and the movable clamping plate (402).

6. A flexible clamping mechanism according to claim 5, characterized in that the connecting seat (3) is provided with a first mounting groove (301) which is in fit connection with the fixed clamping plate (401), and the connecting seat (3) is provided with a second mounting groove (302) which is in the shape of a bar and in fit connection with the movable clamping plate (402).

7. The flexible clamping mechanism as claimed in claim 6, wherein the connecting block (4011) is provided with a connecting hole (4013), the first mounting groove (301) is provided with a first mounting hole (303) which is cooperatively connected with the connecting hole (4013), the second mounting groove (302) is provided with a second mounting hole (304) which is cooperatively connected with the connecting hole (4013), and the second mounting hole (304) is in a strip shape.